[greenlava]

That said I think it goes a step too far to implement that in MSP which is and should stay mainly a sheet reader.

I don't know that I agree with this.  Android only allows me to have one major app running on the screen at a time, which now means the liveBPM function needs to be full screen on a separate device, which is how I currently use it.  Fewer screens is better for me, so a small overlay would be super useful and prevent me from having another screen I need to mount and power.  I think this is one of those features that people don't realize they need until they have it (I certainly didn't), and helps MSP remain the best performance focused sheet reader.